) mainly becaus it's not that mysterious. There is certain propoties of the quadractic equation that can be looked at and tested.1st one is what shape will the equation be:
-2x^2+7x-1
Is the shape of:
And The second property you can get is directly from the quadractic equation, whether a equation has 2 roots, 1 root or it has imaginary roots
5x^2-9x+6
b^2-4ac=-39
How many roots has this equation got?
Okay that was fun hope you enjoy.
